Chrome ToT r478712, on Linux with target_os=chromeos

* Set up SublimeClang per https://chromium.googlesource.com/chromium/src/+/master/docs/linux_sublime_dev.md
* Open base/base_switches.cc
* Good: Everything is indexed, autocomplete is smart, syntax errors are highlighted
* Open ash/ash_switches.cc
* Bad: Nothing is indexed, syntax errors are not highlighted

Will compile file /w/chrome/src/ash/ash_switches.cc with the following options:
['-I/usr/local/google/home/jamescook/.config/sublime-text-3/Packages/SublimeClang/internals/clang/include', '-Wno-attributes', '-x', 'c++', '-std=c++11', '-DUSE_CLANG_COMPLETER', '-std=c++11', '-x', 'c++', '-I/w/chrome/src', '-Wno-unknown-warning-option', '-DASH_IMPLEMENTATION', '-DV8_DEPRECATION_WARNINGS', '-DDCHECK_ALWAYS_ON=1', '-DUSE_UDEV', '-DUSE_ASH=1', '-DUSE_AURA=1', '-DUSE_NSS_CERTS=1', '-DUSE_OZONE=1', '-DDISABLE_NACL', '-DFULL_SAFE_BROWSING', '-DSAFE_BROWSING_CSD', '-DSAFE_BROWSING_DB_LOCAL', '-DCHROMIUM_BUILD', '-DFIELDTRIAL_TESTING_ENABLED', '-DCR_CLANG_REVISION=303910-1', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS', '-DCOMPONENT_BUILD', '-DOS_CHROMEOS', '-DNDEBUG', '-DNVALGRIND', '-DDYNAMIC_ANNOTATIONS_ENABLED=0', '-DGL_GLEXT_PROTOTYPES', '-DUSE_GLX', '-DUSE_EGL', '-DANGLE_ENABLE_RELEASE_ASSERTS', '-DTOOLKIT_VIEWS=1', '-DU_USING_ICU_NAMESPACE=0', '-DU_ENABLE_DYLOAD=0', '-DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE', '-DUCHAR_TYPE=uint16_t', '-DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS', '-DSK_HAS_PNG_LIBRARY', '-DSK_HAS_WEBP_LIBRARY', '-DSK_HAS_JPEG_LIBRARY', '-DSK_FREETYPE_MINIMUM_RUNTIME_VERSION=(((FREETYPE_MAJOR)', '*', '0x01000000)', '|', '((FREETYPE_MINOR)', '*', '0x00010000)', '|', '((FREETYPE_PATCH)', '*', '0x00000100))', '-DSKIA_DLL', '-DGR_GL_IGNORE_ES3_MSAA=0', '-DSK_SUPPORT_GPU=1', '-DGOOGLE_PROTOBUF_NO_RTTI', '-DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER', '-DHAVE_PTHREAD', '-DPROTOBUF_USE_DLLS', '-DMESA_EGL_NO_X11_HEADERS', '-DBORINGSSL_SHARED_LIBRARY', '-DUSING_V8_SHARED', '-I/w/chrome/src', '-I/w/chrome/src/out/Default/gen', '-I/w/chrome/src/third_party/libwebp', '-I/w/chrome/src/third_party/khronos', '-I/w/chrome/src/gpu', '-I/w/chrome/src/third_party/ced/src', '-I/w/chrome/src/third_party/icu/source/common', '-I/w/chrome/src/third_party/icu/source/i18n', '-I/w/chrome/src/skia/config', '-I/w/chrome/src/skia/ext', '-I/w/chrome/src/third_party/skia/include/c', '-I/w/chrome/src/third_party/skia/include/config', '-I/w/chrome/src/third_party/skia/include/core', '-I/w/chrome/src/third_party/skia/include/effects', '-I/w/chrome/src/third_party/skia/include/encode', '-I/w/chrome/src/third_party/skia/include/images', '-I/w/chrome/src/third_party/skia/include/lazy', '-I/w/chrome/src/third_party/skia/include/pathops', '-I/w/chrome/src/third_party/skia/include/pdf', '-I/w/chrome/src/third_party/skia/include/pipe', '-I/w/chrome/src/third_party/skia/include/ports', '-I/w/chrome/src/third_party/skia/include/utils', '-I/w/chrome/src/third_party/skia/third_party/vulkan', '-I/w/chrome/src/third_party/skia/include/gpu', '-I/w/chrome/src/third_party/skia/src/gpu', '-I/w/chrome/src/third_party/skia/src/sksl', '-I/w/chrome/src/build/linux/debian_jessie_amd64-sysroot/usr/include/dbus-1.0', '-I/w/chrome/src/build/linux/debian_jessie_amd64-sysroot/usr/lib/x86_64-linux-gnu/dbus-1.0/include', '-I/w/chrome/src/third_party/protobuf/src', '-I/w/chrome/src/out/Default/gen/protoc_out', '-I/w/chrome/src/third_party/protobuf/src', '-I/w/chrome/src/third_party/mesa/src/include', '-I/w/chrome/src/third_party/libwebm/source', '-I/w/chrome/src/third_party/boringssl/src/include', '-I/w/chrome/src/build/linux/debian_jessie_amd64-sysroot/usr/include/nss', '-I/w/chrome/src/build/linux/debian_jessie_amd64-sysroot/usr/include/nspr', '-I/w/chrome/src/third_party/WebKit', '-I/w/chrome/src/out/Default/gen/third_party/WebKit', '-I/w/chrome/src/v8/include', '-I/w/chrome/src/out/Default/gen/v8/include', '-I/w/chrome/src/third_party/qcms/src', '-I/w/chrome/src/out/Default/gen', '-fno-strict-aliasing', '-Wno-builtin-macro-redefined', '-D__DATE__=', '-D__TIME__=', '-D__TIMESTAMP__=', '-funwind-tables', '-fPIC', '-fcolor-diagnostics', '-m64', '-march=x86-64', '-Wall', '-Werror', '-Wextra', '-Wno-missing-field-initializers', '-Wno-unused-parameter', '-Wno-shift-negative-value', '-Wno-c++11-narrowing', '-Wno-covered-switch-default', '-Wno-unneeded-internal-declaration', '-Wno-inconsistent-missing-override', '-Wno-undefined-var-template', '-Wno-nonportable-include-path', '-Wno-address-of-packed-member', '-Wno-unused-lambda-capture', '-Wno-user-defined-warnings', '-O2', '-fno-ident', '-fdata-sections', '-ffunction-sections', '-fno-omit-frame-pointer', '--sysroot=/w/chrome/src/build/linux/debian_jessie_amd64-sysroot', '-fvisibility=hidden', '-Wheader-hygiene', '-Wstring-conversion', '-Wtautological-overlap-compare', '-std=gnu++11', '-fno-rtti', '-fno-exceptions', '-fvisibility-inlines-hidden']
tu is None...

Git bisect shows it started with this CL:

Author: Ben Wagner <bungeman@chromium.org>
Date:   Mon Jun 5 14:45:34 2017 -0400

    Set build flag when using own FreeType.
    
    Set the SK_FREETYPE_MINIMUM_RUNTIME_VERSION build flag when the
    use_system_freetype gn flag is false. Currently the build flag is only
    set when is_win or is_mac, but this needs to be set any time it is
    known that FreeType will be built into the resulting binary. In
    particular this is desired for Android and WebView, but also for
    desktop Linux.
    
    BUG= chromium:715429 
    
    Change-Id: Ie5e425b0b347caf51400c5522a42e8a88605c147
    Reviewed-on: https://chromium-review.googlesource.com/524185

It causes the list of defines to have an item that has spaces in it.

    defines += [ "SK_FREETYPE_MINIMUM_RUNTIME_VERSION=(((FREETYPE_MAJOR) * 0x01000000) | ((FREETYPE_MINOR) * 0x00010000) | ((FREETYPE_PATCH) * 0x00000100))" ]

which some part of the SublimeClang tooling turns into a python list, chunked by spaces:

'-DSK_FREETYPE_MINIMUM_RUNTIME_VERSION=(((FREETYPE_MAJOR)', '*', '0x01000000)', '|', '((FREETYPE_MINOR)', '*', '0x00010000)', '|', '((FREETYPE_PATCH)', '*', '0x00000100))'

and '*' isn't a valid clang flag, so indexing dies.

You'll only see the indexing failure on files that have skia as a dependency (so it'll show up for files in //ash and //chrome but not //base).

This define seems really weird -- not only does it have spaces, but it's doing math.

bungemen, is there some other way we can compute this define value? scottmg suggested generating a header.